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GMC Yukon and Yukon Denali Problems

779 messages,  Last post on Oct 31, 2009 at 6:36 AM

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What is this discussion about? GMC Yukon Denali, SUV

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#479 of 779 Re: Low Idle '02 Denali [cdog51] by question1 Aug 21, 2006 (6:24 pm)
Replying to: cdog51 (Aug 06, 2006 5:26 pm) Shave mentioned they had an O3 Denali with idle problems. Has anyone else tried the throttle body cleaning fix? Did they have any issues with a battery failure because of the low RPM?
#480 of 779 Re: Water coming out rear floor A/C Vent [waitingonyukon] by waitingonyukon Aug 22, 2006 (5:20 am)
Replying to: waitingonyukon (Aug 21, 2006 11:03 am) Got home last night and poked around under the truck and found the drain for the rear unit. I moved it around a bit and a little bit of muck fell out and then the water ran like a fountain. I couldn't believe there was that much water backed up in there. Oh well, problem solved!
#481 of 779 Re: 99 denali electrical problems [ronburks] by obyone Aug 22, 2006 (9:49 am)
Replying to: ronburks (Aug 21, 2006 5:43 am) sounds like a regulator problem to me.   BTW, that old guy played by Sir Alec Guinness as Jedi Master Ben aka ObiWan Kenobi is of no relation .
#485 of 779 perryd1 by perryd1 Sep 21, 2006 (7:59 am)
have a 99 also - same problem. Intermittently the radio, wipers, and windows cut out. Get this - if i slam the center console lid most of the time all systems cone back to life.    Spoke to several dealers and no common fuse, relay, circuit breaker exisits and no connection in the console area is common - according to them.    Everything is stock. Have you had any luck.
#486 of 779 Headlamp Problems by 3babies Oct 02, 2006 (4:29 pm)
I have a 2001 Denali and my lowbeams do not work. My highbeams work, my fog lamps work and my parking lights work, but I have no lowbeams. I've checked all of my fuses and they seem to be fine. Also tried to replace bulbs but to no avail. Used a meter to make sure there was voltage coming from the connection. It's all good. Also the lights on my steering column (volume controls for radio) are out. And my 3rd brake light. Has anyone else had this problem? Replies to this message: rigatoni (Jul 22, 2008 6:49 pm) rigatoni (Nov 03, 2008 4:29 pm)
#487 of 779 Re: went to dealer for surging/bouncing idle with ac on [2002gmcdenali] by bct Oct 02, 2006 (6:30 pm)
Replying to: 2002gmcdenali (Jun 23, 2005 11:18 am) It is possible That you had a carbon deposit in your intake plenum, it is the part between the throttle body and the block/heads. If it where blocking a passage it would have created the problem you are describing. Not sure on the warranty end of that. Your lucky it wasn't the EGR valve that clogged and they wanted to charge you for. A buddy of mine worked at a dealership and he would replace the whole part even though all you have to do is take it out and knock the carbon out of the valve seat.
#488 of 779 Re: RPM issues w/2003 Yukon XL [keisha40] by bct Oct 02, 2006 (6:35 pm)
Replying to: keisha40 (Aug 15, 2006 7:07 am) Not sure of that particular motor but most newer cars with a tach run off a cam sensor to measure the motors RPM. It is a little device that runs off a magnetic pick up. That is most likely the prob.

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